On November 29, 2011 Dr Conrad Murray was sentenced to four years in prison after being convicted of the involuntary manslaughter of Michael Jackson. Expert witness statements indicated that Murray's actions were an "extreme departure from the standard of care", particularly with regard to (1) inappropriately treating insomnia with a surgical anaesthetic (propofol); (2) failing to acquire sufficiently informed consent; (3) administering propofol without the necessary monitoring equipment; (4) delaying contacting the emergency services; and (5) making ineffective resuscitation efforts. Further medical evidence argued that Murray's care of Jackson contained "17 egregious violations", defined as acts that posed a foreseeable danger to the patient's life. These deficiencies, it was stated, constituted gross negligence. Such events might seem remote from daily medical practice in Ireland. However, medical errors resulting in patient death are reported to be unfortunately frequent, even if such fatalities are rarely as dramatic, or as public, as that of Michael Jackson. Medical care is not necessarily straightforward, and any treatment outcome is dependent on clinician skill, the nature of the intervention, and on the pathological condition of the patient. Regardless of these latter two factors, a poor outcome still may occur through physician omissions or the commission of errors or violations. Merry and McCall Smith distinguish between errors and violations on the following basis: (1) errors are not deliberate, and result in unintentional actions and consequences; (2) violations, on the other hand, entail a deliberate deviation from accepted rules or norms. It was alleged that much of Dr Murray's professional conduct in this case fell into the latter category.
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Front Pharmacol
December 2024
Cancer Center at Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States.
[This corrects the article DOI: 10.3389/fphar.2022.
View Article and Find Full Text PDFRes Sq
December 2024
Department of Pharmacology, University of Minnesota Twin Cities, Minneapolis, MN, USA.
G protein-coupled receptors (GPCRs), the largest family of drug targets, can signal through 16 subtypes of Gα proteins. Biased compounds that selectively activate therapy-relevant pathways promise to be safer, more effective medications. The determinants of bias are poorly understood, however, and rationally-designed, G protein-subtype-selective compounds are lacking.
View Article and Find Full Text PDFCancers (Basel)
November 2024
Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
Mismatch repair (MMR) deficiency can be indicative of Lynch syndrome (LS) and guide treatment with immune checkpoint inhibitors. Colorectal cancers (CRCs) and endometrial cancers (ECs) are routinely screened to identify LS, primarily using immunohistochemistry (IHC) or microsatellite instability (MSI) testing, but concordance between these methods is variable in ECs. Here, we investigate this variability in 361 ECs from the Ohio OCCPI/OPTEC ( = 196) and Manchester PETALS ( = 165) trials, where concordance between assays differed significantly.
View Article and Find Full Text PDFPhys Med Biol
January 2025
Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522, Australia.
the recently developed V79-RBEbiological weighting function (BWF) model is a simple and robust tool for a fast relative biological effectiveness (RBE) assessment for comparing different exposure conditions in particle therapy. In this study, the RBEderived by this model (through the particle and heavy ion transport code system (PHITS) simulatedspectra) is compared with values of RBEusing experimentally derivedspectra from a silicon-on-insulator (SOI) microdosimeter.experimentally measuredspectra are used to calculate an RBEvalue utilizing the V79-RBEBWF model as well as the modified microdosimetric kinetic model (MKM) to produce an RBE-vs-trend for a wide range of ions.
View Article and Find Full Text PDFMed Phys
November 2024
Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia.
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